rust name_error ai_generated true

error[E0425]: cannot find value `x` in this scope

ID: rust/e0425-unresolved-name

Also available as: JSON · Markdown
92%Fix Rate
93%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Name not in scope. Missing import, typo, or wrong module path.

generic

Workarounds

  1. 95% success Add the correct use statement for the module/function 
    use crate::module::function_name;

    Sources: https://doc.rust-lang.org/book/ch07-04-bringing-paths-into-scope-with-the-use-keyword.html

  2. 88% success Check for typos in name and verify module visibility (pub) 
    // Check visibility in the module:
pub fn helper() { }        // visible outside module
pub(crate) fn internal() { } // visible within crate only

// In mod.rs or lib.rs, re-export if needed:
pub mod utils;
pub use utils::helper;

    Sources: https://doc.rust-lang.org/error_codes/E0425.html

Dead Ends

Common approaches that don't work:

  1. Make everything pub 60% fail

    Breaks encapsulation without fixing the import

  2. Copy the function definition locally 70% fail

    Code duplication, will diverge from original

Error Chain

Frequently confused with: